Reef & Root Cycle Coach: a free Claude skill

A small skill that walks you through cycling a new tank, reads your test results and tells you when it’s safe to add fish.

• Fishless and fish-in plans
• Your readings interpreted
• A simple cycle log

Made by Reef & Root, part of What If Labs.

Install it

1. Download reef-root-cycle-coach.zip (don’t unzip it).
2. In Claude on the web or desktop, open Customize, then Skills, click +, choose Upload a skill and pick the ZIP.
3. Make sure code execution is on in Settings, Capabilities. It works on any Claude plan, including the free one.
4. Ask Claude something in plain words. It picks the skill up on its own.

Using Claude Code instead? Copy this folder into ~/.claude/skills/.

Try a free tool first

No Claude needed: the Aquarium Volume and Water Change Calculator runs in your browser and shows its working.

Want the whole thing?

The Reef & Root Aquarium Keeper is $15, one time, with a 14-day refund. Cycle, stock, test, maintain and troubleshoot.

• Cycle plans and test interpretation
• Stocking and compatibility checks
• Freshwater and reef parameter targets
• Maintenance schedules
• Volume and dosing math
• Planted tank planning
• Husbandry-first troubleshooting
• Updates for a year

License

MIT. Use it, change it, share it. Please keep the credit to Reef & Root.